Dynamic analysis of anti-dip bedding rock slopes reinforced by pre-stressed cables using discrete element method

doi:10.1016/j.enganabound.2021.05.014

	Dynamic analysis of anti-dip bedding rock slopes reinforced by pre-stressed cables using discrete element method
	Zheng, Yun; Wang, Runqing; Chen, Congxin; Sun, Chaoyi; Ren, Zhanghao; Zhang, Wei
刊名	ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
	2021-09-01
卷号	130 期号:-页码:79-93
关键词	Anti-dip bedding rock slopes Earthquake Dynamic response Pre-stressed cables Reinforcement mechanisms
ISSN号	0955-7997
DOI	10.1016/j.enganabound.2021.05.014
英文摘要	Pre-stressed cables were found to be a viable approach of reinforcing anti-dip bedding rock slopes (ABRSs) in the Wenchuan earthquake. However, the dynamic response law and failure mechanism of reinforced ABRSs are still unclear, which was studied using the Universal Distinct Element Code (UDEC) method in this work. A numerical model of a typical ABRS was first built up using UDEC. Then, a comparison of the dynamic response of reinforced and unreinforced ABRSs was carried out. Moreover, a systematic parameter study was performed to investigate the effect of cable inclination, cable spacing, and pre-stressed force on the reinforcement effect. The results show that pre-stressed cables can be very effective in controlling the deformation and improving the dynamic stability of ABRSs subjected to dynamic loading. For both unreinforced and reinforced ABRSs, a remarkable acceleration amplification occurs on the surface of the slope from half of the slope height upwards. A small cable inclination and a high pre-stressed force are recommended in the seismic reinforcement design of ABRSs. The results of this work could guide the design of reinforcement of ABRS in earthquake-prone areas.
资助项目	National Natural Science Foundation of China[12072358] ; National Natural Science Foundation of China[41807280] ; Science & technology Research and Development Program of China railway[P2018G045]
WOS研究方向	Engineering ; Mathematics
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000669633200009
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27362]
专题	中科院武汉岩土力学所
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yun,Wang, Runqing,Chen, Congxin,et al. Dynamic analysis of anti-dip bedding rock slopes reinforced by pre-stressed cables using discrete element method[J]. ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,2021,130(-):79-93.
APA	Zheng, Yun,Wang, Runqing,Chen, Congxin,Sun, Chaoyi,Ren, Zhanghao,&Zhang, Wei.(2021).Dynamic analysis of anti-dip bedding rock slopes reinforced by pre-stressed cables using discrete element method.ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,130(-),79-93.
MLA	Zheng, Yun,et al."Dynamic analysis of anti-dip bedding rock slopes reinforced by pre-stressed cables using discrete element method".ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS 130.-(2021):79-93.